refactor: Code cleanup
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@ -1,241 +1,18 @@
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/- Adapted from lean-training-data by semorrison -/
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/- Adapted from lean-training-data by semorrison -/
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import Lean.Parser
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import Lean.Elab.Import
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import Lean.Elab.Command
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import Lean.Elab.Frontend
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import Lean.Elab.InfoTree
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import Lean.Util.Path
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import Pantograph.Protocol
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import Pantograph.Protocol
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import Pantograph.Compile.Frontend
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import Pantograph.Compile.Elab
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open Lean
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open Lean
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namespace Lean.PersistentArray
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/--
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Drop the first `n` elements of a `PersistentArray`, returning the results as a `List`.
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-/
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-- We can't remove the `[Inhabited α]` hypotheses here until
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-- `PersistentArray`'s `GetElem` instance also does.
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def drop [Inhabited α] (t : PersistentArray α) (n : Nat) : List α :=
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List.range (t.size - n) |>.map fun i => t.get! (n + i)
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end Lean.PersistentArray
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namespace Lean.Elab.Info
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/-- The `Syntax` for a `Lean.Elab.Info`, if there is one. -/
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def stx? : Info → Option Syntax
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| .ofTacticInfo info => info.stx
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| .ofTermInfo info => info.stx
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| .ofCommandInfo info => info.stx
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| .ofMacroExpansionInfo info => info.stx
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| .ofOptionInfo info => info.stx
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| .ofFieldInfo info => info.stx
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| .ofCompletionInfo info => info.stx
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| .ofUserWidgetInfo info => info.stx
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| .ofCustomInfo info => info.stx
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| .ofFVarAliasInfo _ => none
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| .ofFieldRedeclInfo info => info.stx
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| .ofOmissionInfo info => info.stx
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/-- Is the `Syntax` for this `Lean.Elab.Info` original, or synthetic? -/
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def isOriginal (i : Info) : Bool :=
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match i.stx? with
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| none => true -- Somewhat unclear what to do with `FVarAliasInfo`, so be conservative.
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| some stx => match stx.getHeadInfo with
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| .original .. => true
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| _ => false
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end Lean.Elab.Info
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namespace Lean.Elab.TacticInfo
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/-- Find the name for the outermost `Syntax` in this `TacticInfo`. -/
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def name? (t : TacticInfo) : Option Name :=
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match t.stx with
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| Syntax.node _ n _ => some n
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| _ => none
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/-- Decide whether a tactic is "substantive",
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or is merely a tactic combinator (e.g. `by`, `;`, multiline tactics, parenthesized tactics). -/
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def isSubstantive (t : TacticInfo) : Bool :=
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match t.name? with
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| none => false
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| some `null => false
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| some ``cdot => false
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| some ``cdotTk => false
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| some ``Lean.Parser.Term.byTactic => false
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| some ``Lean.Parser.Tactic.tacticSeq => false
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| some ``Lean.Parser.Tactic.tacticSeq1Indented => false
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| some ``Lean.Parser.Tactic.«tactic_<;>_» => false
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| some ``Lean.Parser.Tactic.paren => false
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| _ => true
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end Lean.Elab.TacticInfo
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namespace Lean.Elab.InfoTree
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/--
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Keep `.node` nodes and `.hole` nodes satisfying predicates.
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Returns a `List InfoTree`, although in most situations this will be a singleton.
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-/
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partial def filter (p : Info → Bool) (m : MVarId → Bool := fun _ => false) :
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InfoTree → List InfoTree
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| .context ctx tree => tree.filter p m |>.map (.context ctx)
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| .node info children =>
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if p info then
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[.node info (children.toList.map (filter p m)).join.toPArray']
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else
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(children.toList.map (filter p m)).join
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| .hole mvar => if m mvar then [.hole mvar] else []
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end Lean.Elab.InfoTree
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namespace Lean.FileMap
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/-- Extract the range of a `Syntax` expressed as lines and columns. -/
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-- Extracted from the private declaration `Lean.Elab.formatStxRange`,
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-- in `Lean.Elab.InfoTree.Main`.
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def stxRange (fileMap : FileMap) (stx : Syntax) : Position × Position :=
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let pos := stx.getPos?.getD 0
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let endPos := stx.getTailPos?.getD pos
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(fileMap.toPosition pos, fileMap.toPosition endPos)
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end Lean.FileMap
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-- Main
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namespace Pantograph.Compile
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namespace Pantograph.Compile
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structure CompilationStep where
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fileName : String
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fileMap : FileMap
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src : Substring
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stx : Syntax
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before : Environment
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after : Environment
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msgs : List Message
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trees : List Elab.InfoTree
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/--
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Process one command, returning a `CompilationStep` and
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`done : Bool`, indicating whether this was the last command.
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-/
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def processOneCommand: Elab.Frontend.FrontendM (CompilationStep × Bool) := do
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let s := (← get).commandState
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let before := s.env
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let done ← Elab.Frontend.processCommand
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let stx := (← get).commands.back
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let src := (← read).inputCtx.input.toSubstring.extract (← get).cmdPos (← get).parserState.pos
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let s' := (← get).commandState
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let after := s'.env
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let msgs := s'.messages.msgs.drop s.messages.msgs.size
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let trees := s'.infoState.trees.drop s.infoState.trees.size
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let ⟨_, fileName, fileMap⟩ := (← read).inputCtx
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return ({ fileName, fileMap, src, stx, before, after, msgs, trees }, done)
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partial def processFile : Elab.Frontend.FrontendM (List CompilationStep) := do
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let (cmd, done) ← processOneCommand
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if done then
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return [cmd]
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else
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return cmd :: (← processFile)
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def findSourcePath (module : Name) : IO System.FilePath := do
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return System.FilePath.mk ((← findOLean module).toString.replace ".lake/build/lib/" "") |>.withExtension "lean"
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def processSource (module : Name) (opts : Options := {}) : IO (List CompilationStep) := unsafe do
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let file ← IO.FS.readFile (← findSourcePath module)
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let inputCtx := Parser.mkInputContext file module.toString
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let (header, parserState, messages) ← Parser.parseHeader inputCtx
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let (env, messages) ← Elab.processHeader header opts messages inputCtx
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let commandState := Elab.Command.mkState env messages opts
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processFile.run { inputCtx }
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|>.run' {
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commandState := { commandState with infoState.enabled := true },
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parserState,
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cmdPos := parserState.pos
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}
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-- Info tree filtering functions
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structure TacticInvocation where
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info : Elab.TacticInfo
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ctx : Elab.ContextInfo
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children : PersistentArray Elab.InfoTree
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namespace TacticInvocation
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/-- Return the range of the tactic, as a pair of file positions. -/
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def range (t : TacticInvocation) : Position × Position := t.ctx.fileMap.stxRange t.info.stx
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/-- Pretty print a tactic. -/
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def pp (t : TacticInvocation) : IO Format :=
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t.ctx.runMetaM {} try
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Lean.PrettyPrinter.ppTactic ⟨t.info.stx⟩
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catch _ =>
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pure "<failed to pretty print>"
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open Meta
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/-- Run a tactic on the goals stored in a `TacticInvocation`. -/
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def runMetaMGoalsBefore (t : TacticInvocation) (x : List MVarId → MetaM α) : IO α := do
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t.ctx.runMetaM {} <| Meta.withMCtx t.info.mctxBefore <| x t.info.goalsBefore
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/-- Run a tactic on the after goals stored in a `TacticInvocation`. -/
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def runMetaMGoalsAfter (t : TacticInvocation) (x : List MVarId → MetaM α) : IO α := do
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t.ctx.runMetaM {} <| Meta.withMCtx t.info.mctxAfter <| x t.info.goalsAfter
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/-- Run a tactic on the main goal stored in a `TacticInvocation`. -/
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def runMetaM (t : TacticInvocation) (x : MVarId → MetaM α) : IO α := do
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match t.info.goalsBefore.head? with
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| none => throw <| IO.userError s!"No goals at {← t.pp}"
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| some g => t.runMetaMGoalsBefore fun _ => do g.withContext <| x g
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def mainGoal (t : TacticInvocation) : IO Expr :=
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t.runMetaM (fun g => do instantiateMVars (← g.getType))
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def formatMainGoal (t : TacticInvocation) : IO Format :=
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t.runMetaM (fun g => do ppExpr (← instantiateMVars (← g.getType)))
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def goalState (t : TacticInvocation) : IO (List Format) := do
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t.runMetaMGoalsBefore (fun gs => gs.mapM fun g => do Meta.ppGoal g)
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def goalStateAfter (t : TacticInvocation) : IO (List Format) := do
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t.runMetaMGoalsAfter (fun gs => gs.mapM fun g => do Meta.ppGoal g)
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def ppExpr (t : TacticInvocation) (e : Expr) : IO Format :=
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t.runMetaM (fun _ => do Meta.ppExpr (← instantiateMVars e))
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end TacticInvocation
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/-- Analogue of `Lean.Elab.InfoTree.findInfo?`, but that returns a list of all results. -/
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partial def findAllInfo (t : Elab.InfoTree) (ctx : Option Elab.ContextInfo) (pred : Elab.Info → Bool) :
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List (Elab.Info × Option Elab.ContextInfo × PersistentArray Elab.InfoTree) :=
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match t with
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| .context inner t => findAllInfo t (inner.mergeIntoOuter? ctx) pred
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| .node i children =>
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(if pred i then [(i, ctx, children)] else []) ++ children.toList.bind (fun t => findAllInfo t ctx pred)
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| _ => []
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/-- Return all `TacticInfo` nodes in an `InfoTree` corresponding to tactics,
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each equipped with its relevant `ContextInfo`, and any children info trees. -/
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def collectTacticNodes (t : Elab.InfoTree) : List (Elab.TacticInfo × Elab.ContextInfo × PersistentArray Elab.InfoTree) :=
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let infos := findAllInfo t none fun i => match i with
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| .ofTacticInfo _ => true
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| _ => false
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infos.filterMap fun p => match p with
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| (.ofTacticInfo i, some ctx, children) => (i, ctx, children)
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| _ => none
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def collectTactics (t : Elab.InfoTree) : List TacticInvocation :=
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collectTacticNodes t |>.map (fun ⟨i, ctx, children⟩ => ⟨i, ctx, children⟩)
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|>.filter fun i => i.info.isSubstantive
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def compileAndCollectTacticInvocations (module : Name) : IO Protocol.CompileTacticsResult := do
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def compileAndCollectTacticInvocations (module : Name) : IO Protocol.CompileTacticsResult := do
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let steps ← processSource module
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let steps ← processSource module
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let infoTrees := steps.bind (·.trees)
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let infoTrees := steps.bind (·.trees)
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let tacticInfoTrees := infoTrees.bind λ tree => tree.filter λ
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let tacticInfoTrees := infoTrees.bind λ tree => tree.filter λ
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| info@(.ofTacticInfo _) => true --info.isOriginal
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| info@(.ofTacticInfo _) => info.isOriginal
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| _ => false
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| _ => false
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let tactics := tacticInfoTrees.bind collectTactics
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let tactics := tacticInfoTrees.bind collectTactics
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IO.println s!"{steps.length} compilation steps, {infoTrees.length} trees found, {tacticInfoTrees.length} tactic trees, {tactics.length} tactics found"
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IO.println s!"{steps.length} compilation steps, {infoTrees.length} trees found, {tacticInfoTrees.length} tactic trees, {tactics.length} tactics found"
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@ -0,0 +1,153 @@
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import Lean.Elab.Import
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import Lean.Elab.Command
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import Lean.Elab.InfoTree
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import Pantograph.Compile.Frontend
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open Lean
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namespace Lean.Elab.Info
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/-- The `Syntax` for a `Lean.Elab.Info`, if there is one. -/
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protected def stx? : Info → Option Syntax
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| .ofTacticInfo info => info.stx
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| .ofTermInfo info => info.stx
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| .ofCommandInfo info => info.stx
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| .ofMacroExpansionInfo info => info.stx
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| .ofOptionInfo info => info.stx
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| .ofFieldInfo info => info.stx
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| .ofCompletionInfo info => info.stx
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| .ofUserWidgetInfo info => info.stx
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| .ofCustomInfo info => info.stx
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| .ofFVarAliasInfo _ => none
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| .ofFieldRedeclInfo info => info.stx
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| .ofOmissionInfo info => info.stx
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/-- Is the `Syntax` for this `Lean.Elab.Info` original, or synthetic? -/
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protected def isOriginal (i : Info) : Bool :=
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match i.stx? with
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| none => true -- Somewhat unclear what to do with `FVarAliasInfo`, so be conservative.
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| some stx => match stx.getHeadInfo with
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| .original .. => true
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| _ => false
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end Lean.Elab.Info
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namespace Lean.Elab.TacticInfo
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/-- Find the name for the outermost `Syntax` in this `TacticInfo`. -/
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def name? (t : TacticInfo) : Option Name :=
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match t.stx with
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| Syntax.node _ n _ => some n
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| _ => none
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/-- Decide whether a tactic is "substantive",
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or is merely a tactic combinator (e.g. `by`, `;`, multiline tactics, parenthesized tactics). -/
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def isSubstantive (t : TacticInfo) : Bool :=
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match t.name? with
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| none => false
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| some `null => false
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| some ``cdot => false
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| some ``cdotTk => false
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| some ``Lean.Parser.Term.byTactic => false
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| some ``Lean.Parser.Tactic.tacticSeq => false
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| some ``Lean.Parser.Tactic.tacticSeq1Indented => false
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| some ``Lean.Parser.Tactic.«tactic_<;>_» => false
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| some ``Lean.Parser.Tactic.paren => false
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| _ => true
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end Lean.Elab.TacticInfo
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namespace Lean.Elab.InfoTree
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/--
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Keep `.node` nodes and `.hole` nodes satisfying predicates.
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Returns a `List InfoTree`, although in most situations this will be a singleton.
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-/
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partial def filter (p : Info → Bool) (m : MVarId → Bool := fun _ => false) :
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InfoTree → List InfoTree
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| .context ctx tree => tree.filter p m |>.map (.context ctx)
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| .node info children =>
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if p info then
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[.node info (children.toList.map (filter p m)).join.toPArray']
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else
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(children.toList.map (filter p m)).join
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| .hole mvar => if m mvar then [.hole mvar] else []
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end Lean.Elab.InfoTree
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namespace Pantograph.Compile
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-- Info tree filtering functions
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structure TacticInvocation where
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info : Elab.TacticInfo
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ctx : Elab.ContextInfo
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children : PersistentArray Elab.InfoTree
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namespace TacticInvocation
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/-- Return the range of the tactic, as a pair of file positions. -/
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protected def range (t : TacticInvocation) : Position × Position := t.ctx.fileMap.stxRange t.info.stx
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/-- Pretty print a tactic. -/
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protected def pp (t : TacticInvocation) : IO Format :=
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t.ctx.runMetaM {} try
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Lean.PrettyPrinter.ppTactic ⟨t.info.stx⟩
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catch _ =>
|
||||||
|
pure "<failed to pretty print>"
|
||||||
|
|
||||||
|
/-- Run a tactic on the goals stored in a `TacticInvocation`. -/
|
||||||
|
protected def runMetaMGoalsBefore (t : TacticInvocation) (x : List MVarId → MetaM α) : IO α := do
|
||||||
|
t.ctx.runMetaM {} <| Meta.withMCtx t.info.mctxBefore <| x t.info.goalsBefore
|
||||||
|
|
||||||
|
/-- Run a tactic on the after goals stored in a `TacticInvocation`. -/
|
||||||
|
protected def runMetaMGoalsAfter (t : TacticInvocation) (x : List MVarId → MetaM α) : IO α := do
|
||||||
|
t.ctx.runMetaM {} <| Meta.withMCtx t.info.mctxAfter <| x t.info.goalsAfter
|
||||||
|
|
||||||
|
/-- Run a tactic on the main goal stored in a `TacticInvocation`. -/
|
||||||
|
protected def runMetaM (t : TacticInvocation) (x : MVarId → MetaM α) : IO α := do
|
||||||
|
match t.info.goalsBefore.head? with
|
||||||
|
| none => throw <| IO.userError s!"No goals at {← t.pp}"
|
||||||
|
| some g => t.runMetaMGoalsBefore fun _ => do g.withContext <| x g
|
||||||
|
|
||||||
|
protected def mainGoal (t : TacticInvocation) : IO Expr :=
|
||||||
|
t.runMetaM (fun g => do instantiateMVars (← g.getType))
|
||||||
|
|
||||||
|
protected def formatMainGoal (t : TacticInvocation) : IO Format :=
|
||||||
|
t.runMetaM (fun g => do Meta.ppExpr (← instantiateMVars (← g.getType)))
|
||||||
|
|
||||||
|
protected def goalState (t : TacticInvocation) : IO (List Format) := do
|
||||||
|
t.runMetaMGoalsBefore (fun gs => gs.mapM fun g => do Meta.ppGoal g)
|
||||||
|
|
||||||
|
protected def goalStateAfter (t : TacticInvocation) : IO (List Format) := do
|
||||||
|
t.runMetaMGoalsAfter (fun gs => gs.mapM fun g => do Meta.ppGoal g)
|
||||||
|
|
||||||
|
protected def ppExpr (t : TacticInvocation) (e : Expr) : IO Format :=
|
||||||
|
t.runMetaM (fun _ => do Meta.ppExpr (← instantiateMVars e))
|
||||||
|
|
||||||
|
end TacticInvocation
|
||||||
|
|
||||||
|
/-- Analogue of `Lean.Elab.InfoTree.findInfo?`, but that returns a list of all results. -/
|
||||||
|
partial def findAllInfo (t : Elab.InfoTree) (ctx : Option Elab.ContextInfo) (pred : Elab.Info → Bool) :
|
||||||
|
List (Elab.Info × Option Elab.ContextInfo × PersistentArray Elab.InfoTree) :=
|
||||||
|
match t with
|
||||||
|
| .context inner t => findAllInfo t (inner.mergeIntoOuter? ctx) pred
|
||||||
|
| .node i children =>
|
||||||
|
(if pred i then [(i, ctx, children)] else []) ++ children.toList.bind (fun t => findAllInfo t ctx pred)
|
||||||
|
| _ => []
|
||||||
|
|
||||||
|
/-- Return all `TacticInfo` nodes in an `InfoTree` corresponding to tactics,
|
||||||
|
each equipped with its relevant `ContextInfo`, and any children info trees. -/
|
||||||
|
def collectTacticNodes (t : Elab.InfoTree) : List (Elab.TacticInfo × Elab.ContextInfo × PersistentArray Elab.InfoTree) :=
|
||||||
|
let infos := findAllInfo t none fun i => match i with
|
||||||
|
| .ofTacticInfo _ => true
|
||||||
|
| _ => false
|
||||||
|
infos.filterMap fun p => match p with
|
||||||
|
| (.ofTacticInfo i, some ctx, children) => (i, ctx, children)
|
||||||
|
| _ => none
|
||||||
|
|
||||||
|
def collectTactics (t : Elab.InfoTree) : List TacticInvocation :=
|
||||||
|
collectTacticNodes t |>.map (fun ⟨i, ctx, children⟩ => ⟨i, ctx, children⟩)
|
||||||
|
|>.filter fun i => i.info.isSubstantive
|
||||||
|
|
||||||
|
|
||||||
|
end Pantograph.Compile
|
||||||
|
|
@ -0,0 +1,86 @@
|
||||||
|
import Lean.Parser
|
||||||
|
import Lean.Elab.Frontend
|
||||||
|
|
||||||
|
open Lean
|
||||||
|
|
||||||
|
namespace Lean.FileMap
|
||||||
|
|
||||||
|
/-- Extract the range of a `Syntax` expressed as lines and columns. -/
|
||||||
|
-- Extracted from the private declaration `Lean.Elab.formatStxRange`,
|
||||||
|
-- in `Lean.Elab.InfoTree.Main`.
|
||||||
|
protected def stxRange (fileMap : FileMap) (stx : Syntax) : Position × Position :=
|
||||||
|
let pos := stx.getPos?.getD 0
|
||||||
|
let endPos := stx.getTailPos?.getD pos
|
||||||
|
(fileMap.toPosition pos, fileMap.toPosition endPos)
|
||||||
|
|
||||||
|
end Lean.FileMap
|
||||||
|
namespace Lean.PersistentArray
|
||||||
|
|
||||||
|
/--
|
||||||
|
Drop the first `n` elements of a `PersistentArray`, returning the results as a `List`.
|
||||||
|
-/
|
||||||
|
-- We can't remove the `[Inhabited α]` hypotheses here until
|
||||||
|
-- `PersistentArray`'s `GetElem` instance also does.
|
||||||
|
protected def drop [Inhabited α] (t : PersistentArray α) (n : Nat) : List α :=
|
||||||
|
List.range (t.size - n) |>.map fun i => t.get! (n + i)
|
||||||
|
|
||||||
|
end Lean.PersistentArray
|
||||||
|
|
||||||
|
|
||||||
|
namespace Pantograph.Compile
|
||||||
|
|
||||||
|
structure CompilationStep where
|
||||||
|
fileName : String
|
||||||
|
fileMap : FileMap
|
||||||
|
src : Substring
|
||||||
|
stx : Syntax
|
||||||
|
before : Environment
|
||||||
|
after : Environment
|
||||||
|
msgs : List Message
|
||||||
|
trees : List Elab.InfoTree
|
||||||
|
|
||||||
|
|
||||||
|
/--
|
||||||
|
Process one command, returning a `CompilationStep` and
|
||||||
|
`done : Bool`, indicating whether this was the last command.
|
||||||
|
-/
|
||||||
|
def processOneCommand: Elab.Frontend.FrontendM (CompilationStep × Bool) := do
|
||||||
|
let s := (← get).commandState
|
||||||
|
let before := s.env
|
||||||
|
let done ← Elab.Frontend.processCommand
|
||||||
|
let stx := (← get).commands.back
|
||||||
|
let src := (← read).inputCtx.input.toSubstring.extract (← get).cmdPos (← get).parserState.pos
|
||||||
|
let s' := (← get).commandState
|
||||||
|
let after := s'.env
|
||||||
|
let msgs := s'.messages.msgs.drop s.messages.msgs.size
|
||||||
|
let trees := s'.infoState.trees.drop s.infoState.trees.size
|
||||||
|
let ⟨_, fileName, fileMap⟩ := (← read).inputCtx
|
||||||
|
return ({ fileName, fileMap, src, stx, before, after, msgs, trees }, done)
|
||||||
|
|
||||||
|
partial def processFile : Elab.Frontend.FrontendM (List CompilationStep) := do
|
||||||
|
let (cmd, done) ← processOneCommand
|
||||||
|
if done then
|
||||||
|
return [cmd]
|
||||||
|
else
|
||||||
|
return cmd :: (← processFile)
|
||||||
|
|
||||||
|
|
||||||
|
def findSourcePath (module : Name) : IO System.FilePath := do
|
||||||
|
return System.FilePath.mk ((← findOLean module).toString.replace ".lake/build/lib/" "") |>.withExtension "lean"
|
||||||
|
|
||||||
|
def processSource (module : Name) (opts : Options := {}) : IO (List CompilationStep) := unsafe do
|
||||||
|
let file ← IO.FS.readFile (← findSourcePath module)
|
||||||
|
let inputCtx := Parser.mkInputContext file module.toString
|
||||||
|
|
||||||
|
let (header, parserState, messages) ← Parser.parseHeader inputCtx
|
||||||
|
let (env, messages) ← Elab.processHeader header opts messages inputCtx
|
||||||
|
let commandState := Elab.Command.mkState env messages opts
|
||||||
|
processFile.run { inputCtx }
|
||||||
|
|>.run' {
|
||||||
|
commandState := { commandState with infoState.enabled := true },
|
||||||
|
parserState,
|
||||||
|
cmdPos := parserState.pos
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
end Pantograph.Compile
|
||||||
Loading…
Reference in New Issue